Display device

Abstract

A display device includes a display panel, a support member disposed below the display panel, and a cushion layer disposed below the support member and including a first cushion part overlapping a first non-folding region, and a second cushion part overlapping a second non-folding region, the support member including an upper plate, and a lower plate below the upper plate. The lower plate includes a first lower plate including a first horizontal part parallel to a plane defined by a first direction and a second direction intersecting the first direction, and a first vertical part extended from the first horizontal part and bent toward the first cushion part, and a second lower plate spaced apart from the first lower plate, and including a second horizontal part parallel to the plane, and a second vertical part extended from the second horizontal part and bent toward the second cushion part.

What is claimed is: 
     
       1. A display device comprising:
 a first non-folding region, a folding region, and a second non-folding region which are sequentially defined in a first direction; 
 a display panel; 
 a support member disposed below the display panel; and 
 a cushion layer disposed below the support member and including a first cushion part overlapping the first non-folding region in a plan view, and a second cushion part overlapping the second non-folding region in a plan view, the support member including:
 an upper plate; and 
 a lower plate disposed below the upper plate, 
 
 wherein the lower plate includes:
 a first lower plate including:
 a first horizontal part parallel to a plane defined by the first direction and a second direction intersecting the first direction; and 
 a first vertical part extended from the first horizontal part and bent toward the first cushion part; and 
 
 a second lower plate spaced apart from the first lower plate by a gap and including:
 a second horizontal part parallel to the plane; and 
 a second vertical part extended from the second horizontal part and bent toward the second cushion part, and 
 
 
 wherein the first vertical part comprises a first inner surface adjacent to the first cushion part, and a first outer surface spaced apart from the first cushion part; 
 the second vertical part comprises a second inner surface adjacent to the second cushion part, and a second outer surface spaced apart from the second cushion part; and 
 the first vertical part is spaced apart from the second vertical part by the gap. 
 
     
     
       2. The display device of  claim 1 , wherein:
 the first vertical part comprises a first round part bent with a first radius of curvature, 
 the second vertical part comprises a second round part bent with a second radius of curvature, and 
 each of the first radius of curvature and the second radius of curvature is about 1 mm or less. 
 
     
     
       3. The display device of  claim 1 , wherein the first vertical part and the second vertical part overlap the folding region in a plan view. 
     
     
       4. The display device of  claim 1 , wherein the lower plate includes a copper alloy. 
     
     
       5. The display device of  claim 1 , wherein openings are formed in the upper plate. 
     
     
       6. The display device of  claim 5 , wherein
 the upper plate comprises a plate folding region corresponding to the folding region, and 
 the openings are formed in the plate folding region. 
 
     
     
       7. The display device of  claim 6 , wherein the upper plate comprises a first plate non-folding region, the plate folding region, and a second plate non-folding region which are sequentially arranged in the first direction. 
     
     
       8. The display device of  claim 1 , wherein the first vertical part and the second vertical part are each extended in a third direction intersecting the first direction and the second direction. 
     
     
       9. The display device of  claim 1 , wherein:
 the first vertical part is disposed more adjacent to the upper plate than a lower surface of the first cushion part; and 
 the second vertical part is disposed more adjacent to the upper plate than a lower surface of the second cushion part. 
 
     
     
       10. The display device of  claim 1 , wherein:
 the first vertical part overlaps at least a portion of the first cushion part in a cross-sectional view; and 
 the second vertical part overlaps at least a portion of the second cushion part in a cross-sectional view. 
 
     
     
       11. The display device of  claim 1 , wherein:
 the first vertical part contacts at least a portion of a side surface of the first cushion part; and 
 the second vertical part contacts at least a portion of a side surface of the second cushion part. 
 
     
     
       12. The display device of  claim 1 , wherein:
 the first vertical part further comprises:
 a first connection surface extending between the first inner surface and the first outer surface, 
 
 the second vertical part further comprises:
 a second connection surface extending between the second inner surface and the second outer surface, and 
 
 each of the first connection surface and the second connection surface is one of parallel to the plane, or inclined at an angle with respect to the plane. 
 
     
     
       13. The display device of  claim 12 , wherein:
 the first connection surface is positioned more adjacent to the upper plate than the lower surface of the first cushion part in case that the first cushion part is applied with a first pressure in a third direction intersecting the first direction and the second direction, 
 the second connection surface is positioned more adjacent to the upper plate than the lower surface of the first cushion part in case that the second cushion part is applied with the first pressure in the third direction, and 
 the first pressure is about 1 MPa or less. 
 
     
     
       14. The display device of  claim 1 , wherein the support member further comprises a cover film disposed between the upper plate and the lower plate. 
     
     
       15. The display device of  claim 1 , wherein the first vertical part, the gap, and the second vertical part overlap the folding region in a plan view. 
     
     
       16. A display device comprising:
 a display panel including a first non-folding region, a folding region, and a second non-folding region which are sequentially defined in a first direction; and 
 a support member disposed below the display panel, the support member including:
 an upper plate including openings formed therein and overlapping the folding region in a plan view; and 
 a lower plate disposed below the upper plate and including a first lower plate and a second lower plate spaced apart from the first lower plate by a gap, wherein: 
 
 the first lower plate includes:
 a first horizontal part parallel to the display panel; and 
 a first vertical part extended from the first horizontal part and bent in a second direction away from the display panel; and 
 
 the second lower plate includes:
 a second horizontal part parallel to the display panel; and 
 a second vertical part extended from the second horizontal part and bent in the second direction away from the display panel, 
 
 wherein the first vertical part and the second vertical part overlap the folding region in a plan view, and 
 wherein the first vertical part comprises a first inner surface adjacent to the first cushion part, and a first outer surface spaced apart from the first cushion part; 
 the second vertical part comprises a second inner surface adjacent to the second cushion part, and a second outer surface spaced apart from the second cushion part; and 
 the first vertical part is spaced apart from the second vertical part by the gap. 
 
     
     
       17. The display device of  claim 16 , wherein:
 the first vertical part comprises a first round part bent with a first radius of curvature; 
 the second vertical part comprises a second round part bent with a second radius of curvature, and 
 each the first radius of curvature and the second radius of curvature is about 1 mm or less. 
 
     
     
       18. The display device of  claim 16 , wherein the lower plate includes a copper alloy. 
     
     
       19. The display device of  claim 16 , wherein:
 the upper plate comprises:
 a plate folding region overlapping the folding region in a plan view; and 
 a first plate non-folding region and a second plate non-folding region respectively overlapping the first non-folding region and the second non-folding region in a plan view; and 
 
 openings are formed in the plate folding region. 
 
     
     
       20. The display device of  claim 16 , further comprising:
 a cushion layer disposed below the support member, wherein the cushion layer includes: 
 a first cushion part including a first portion overlapping the first vertical part in a cross-sectional view; and 
 a second cushion part including a second portion overlapping the second vertical part in a cross-sectional view. 
 
     
     
       21. The display device of  claim 20 , wherein:
 the first vertical part is positioned more adjacent to the upper plate than a lower surface of the first cushion part in case that the first cushion part is applied with a first pressure in a direction perpendicular to the plane, 
 the second vertical part is positioned more adjacent to the upper plate than a lower surface of the second cushion part in case that the second cushion part is applied with the first pressure in a direction perpendicular to the plane, and 
 the first pressure is about 1 MPa or less.